An automated sizing sawing device for aluminum products

Abstract

The application provides an automatic sizing sawing device for aluminum products, and relates to the technical field of aluminum product processing; the automatic sizing sawing device comprises a processing platform, a sawing mechanism, an automatic sizing assembly, a floating clamping assembly, a stress relieving assembly and a linkage assembly; through the cooperative linkage of multiple components, the core technologies of surface damage marker identification, sizing position correction, soft clamping to hard clamping conversion and mechanical stress relieving of the unwinding stress through the stress relieving assembly are completely covered; the automatic sizing assembly can identify the surface damage position marker of the aluminum flat tube in real time and output a sizing correction instruction, so that the automatic adjustment of the sawing length is realized; the stress relieving assembly forms a reverse bending tendency at the bottom of the aluminum flat tube through abutting, so that the unwinding stress is relieved, the winding rebound during sawing is reduced, and the straightness and geometric precision of the finished product after sawing are improved.

Description

Technical Field

[0001] This invention relates to the technical field of aluminum product processing, and in particular to an automated fixed-length sawing device for aluminum products. Background Technology

[0002] In the large-scale production of aluminum flat tubes, the sawing process is a crucial link connecting the forming of aluminum flat tubes with subsequent processing. Its core requirement is to achieve fixed-length sawing of aluminum flat tubes, ensure that the saw cut is flat and free of deformation, and effectively avoid damaged areas on the surface of the aluminum flat tubes, thereby improving the product qualification rate. Currently, most existing aluminum flat tube sawing equipment adopts semi-automatic or traditional automated modes.

[0003] For example, Chinese patent CN223544224U discloses a fixed-length cutting device for aluminum tubes, including a sawing table with a table surface, a saw blade slit on one side of the table surface, a saw blade mechanism below the saw blade slit, and a roller mechanism on the outer side of the sawing table near the saw blade slit. The roller mechanism includes a fixed bracket, multiple rollers on the inner side of the fixed bracket, a track on the fixed bracket, a sliding seat on the track, and a locking mechanism on the sliding seat to fix the position of the sliding seat. The device achieves fixed length cutting through the sliding seat and positioning plate, allowing for arbitrary adjustment of the required cutting length and enabling the simultaneous cutting of multiple aluminum tubes, thus improving work efficiency.

[0004] However, the aforementioned cutting device for aluminum tube sawing has some shortcomings in actual use: 1. Firstly, although the existing equipment can perform fixed-length sawing of aluminum products, its degree of automation in fixed-length sawing is low, and it cannot be adjusted in real time according to the condition of the aluminum products. In particular, when there are damaged or unqualified marks on the surface of the aluminum products, it is necessary to separate the unqualified or damaged areas in a directional manner. The existing equipment cannot handle this, which can easily lead to the damaged or unqualified areas being mixed with qualified products, affecting product quality.

[0005] 2. Secondly, aluminum products are often stored in coils for a long time during manufacturing and storage. Therefore, after long-term winding, a certain degree of unwinding stress will accumulate inside the aluminum flat tube. If this stress cannot be effectively suppressed before sawing, the aluminum flat tube is prone to curling at the end due to the release of internal residual stress at the moment of cutting. It may even quickly return to its bent shape after cutting, resulting in the workpiece not being straight and having large dimensional accuracy deviations.

[0006] 3. In addition, the existing device described above uses a sliding seat and a positioning plate to fix the length, and the length to be cut can be adjusted arbitrarily. However, after the aluminum product is intercepted by the sliding seat, the aluminum product will bounce back when it hits the sliding seat, resulting in inaccurate cutting. Summary of the Invention

[0007] To address the issues of non-straightness and large dimensional accuracy deviations in the processing of aluminum flat tubes, this invention provides an automated fixed-length sawing device for aluminum products, employing the following technical solution: An automated fixed-length sawing device for aluminum products includes a processing platform and a sawing mechanism disposed on the processing platform. It also includes an automatic fixed-length component, which includes an identification module and a sliding fixed-length seat. The identification module is fixedly installed on the processing platform and is used to identify the location marks of surface damage on the aluminum products. The sliding fixed-length seat is slidably installed on an electric slide rail on the processing platform and is used to move along the electric slide rail according to the result of the identification module to adjust the sawing length of the aluminum products. Two floating clamping assemblies are distributed on both sides of the sawing mechanism. Each floating clamping assembly includes a fixed frame, a fixed clamping plate fixedly connected to the fixed frame, and a floating clamping plate elastically slidably connected to the fixed frame. The floating clamping plate and the fixed clamping plate are used to elastically clamp aluminum products. The stress relief assembly, located on the processing platform and between two floating clamping assemblies, is used to press the arched surface of the aluminum product to relieve the unwinding stress of the aluminum product.

[0008] Preferably, a fixed length baffle is slidably provided on the sliding fixed length base along its height direction, and a strip groove is opened on the sliding fixed length base for the fixed length baffle to pass through. The fixed length baffle passes vertically through the strip groove to limit the aluminum product on the processing platform. An electric control push rod is also installed on the sliding fixed length base through a bracket. The output end of the electric control push rod faces the fixed length baffle and is connected to it. The sliding fixed-length base and the electrically controlled push rod are both electrically connected to the identification module. The identification module controls the extension and retraction of the fixed-length baffle and the movement of the sliding fixed-length base.

[0009] Preferably, a fixed frame is installed on the processing platform, a fixed clamping plate is fixed on the fixed frame, a floating clamping plate is slidably disposed on the fixed frame, and the floating clamping plate is located directly below the fixed clamping plate. Two sets of traction columns are symmetrically installed on the fixed clamping plate along its length, and the floating clamping plate is slidably disposed on the traction columns. A floating compression spring is also sleeved on the traction columns to drive the floating clamping plate to always have an upward force.

[0010] Preferably, the sawing mechanism includes a sawing machine and a sawing swing arm. The sawing swing arm is hinged to the base of the sawing machine. The sawing machine is located at the end of the sawing swing arm away from the base of the sawing machine. The base of the sawing machine is installed on the side wall of the processing platform, and the sawing swing arm is controlled by a motor to move towards the aluminum flat tube.

[0011] Preferably, a linkage assembly is also installed between the floating clamping plate and the sawing mechanism. The linkage assembly includes a linkage wedge block installed at the bottom of the floating clamping plate and a linkage abutting rod that abuts against the linkage wedge block. The linkage abutting rod is slidably mounted on the fixed frame. The sawing arm is also equipped with an active collar and a passive collar. The passive collar is fixedly connected to the sawing arm, and the active collar is slidably connected to the sawing arm. A traction rod is hinged on the active collar, and the traction rod extends diagonally downward and is connected to the linkage abutment rod.

[0012] Preferably, a pressing spring is provided between the active collar and the passive collar.

[0013] Preferably, the stress relief component includes a stress relief block that abuts against the bottom of the aluminum flat tube to form a reverse bow tendency and relieves stress, and the stress relief block is slidably installed in the movable sleeve along the height direction.

[0014] A guide column aligned with the conveying direction of the aluminum flat tube is installed in the middle of the fixed frame. The movable sleeve is slidably mounted on the guide column, and a stress-relieving spring connected to the movable sleeve is sleeved on the guide column.

[0015] Preferably, the movable sleeve is equipped with vertically distributed precision control electric rods, the output ends of which face upward and are connected to the stress relief block, thereby controlling the stress relief block to handle the bending stress of aluminum flat tubes of different sizes.

[0016] Preferably, the top of the stress relief block is provided with a storage groove for the sawing mechanism to cut.

[0017] Preferably, the length-fixing baffle includes a front baffle and a rear base plate, which are connected by a high-rigidity damping spring, and the output end of the electronically controlled push rod is connected to the rear base plate.

[0018] In summary, this application includes at least one of the following beneficial technical effects: 1. The identification module of this invention, in conjunction with the automatic length-setting component, can identify the marked area of ​​the damaged location on the surface of the aluminum flat tube in real time. It can dynamically map the defect area to the length and transmit this information to the automatic length-setting component, enabling the automatic length-setting component to automatically correct the sawing length. This ensures that the defect area is outside the finished product section while maintaining high-precision length positioning, thereby reducing manual intervention, improving production efficiency and finished product qualification rate.

[0019] Second, the floating clamping component of the present invention provides flexible and low-resistance clamping in the initial stage, reducing friction and impact during the feeding process, avoiding damage to the pipe end and positioning errors caused by foreign objects. As the work enters the cutting stage, the linkage component gradually presses the floating clamping plate, completing a seamless switch from soft clamping to hard clamping, improving the stability of the cutting process, and reducing pipe movement and coiling rebound at the moment of cutting.

[0020] Third, the stress relief component of this invention forms a reverse arch at the bottom of the aluminum flat tube by means of stress relief blocks, which relieves the internal unwinding stress of the aluminum flat tube in the winding state; at the same time, with the fine adjustment capability of the precision control electric rod, it can achieve stress relief effect of different strengths for aluminum flat tubes of different sizes, thicknesses and winding tightness, thereby reducing the risk of springback after cutting, end warping and bending deformation.

[0021] Fourth, the length-fixing baffle of this invention adopts a double-layer structure of front baffle and rear base plate and is equipped with a high-rigidity damping spring, which can absorb part of the impact energy when fixing the length of aluminum flat tube, reduce the risk of end damage, and also prevent the aluminum flat tube from rebounding after impact, thus affecting the accuracy of length fixing. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the structure of the automated fixed-length sawing device for aluminum products of the present invention.

[0024] Figure 2 This is a schematic diagram of the structure between the sawing mechanism and the automatic length-fixing component of the present invention.

[0025] Figure 3 This is a first-view structural diagram of the sawing mechanism and the floating clamping assembly of the present invention.

[0026] Figure 4 This is a second-view structural diagram of the sawing mechanism and the floating clamping assembly of the present invention.

[0027] Figure 5 This is a schematic diagram of the structure between the floating clamping component and the linkage component of the present invention.

[0028] Figure 6 This is an exploded view of the floating clamping component and the linkage component of the present invention.

[0029] Figure 7 This is a schematic diagram of the stress relief component of the present invention.

[0030] Figure 8 This is a plan view of the floating clamping component and the linkage component of the present invention.

[0031] Figure 9 This is a schematic diagram of the automatic length-measuring component of the present invention.

[0032] Figure 10 This is a schematic diagram of the structure of the fixed-length baffle of the present invention.

[0033] Explanation of reference numerals in the attached figures: 100. Aluminum flat tube; 1. Processing platform; 2. Sawing mechanism; 3. Automatic length setting component; 30. Identification module; 31. Sliding length setting seat; 32. Electric slide rail; 4. Floating clamping component; 40. Fixed clamping plate; 41. Floating clamping plate; 42. Stress relief component; 33. Electrically controlled push rod; 34. Length setting baffle; 43. Fixed frame; 44. Traction column; 45. Floating compression spring; 20. Sawing machine; 21. 5. Saw arm; 6. Linkage assembly; 7. Linkage wedge block; 8. Linkage contact rod; 9. Active collar; 10. Passive collar; 11. Traction rod; 22. Pressing spring; 33. Stress relief block; 44. Moving sleeve; 55. Guide column; 66. Stress relief spring; 77. Precision control electric rod; 8. Storage slot; 9. Front baffle; 10. Rear base plate; 11. Damping spring. Detailed Implementation

[0034] The following combination Figures 1-10 This application will be described in further detail.

[0035] This application provides an automated fixed-length sawing device for aluminum products. The core objective is to achieve seamless linkage of aluminum flat tube 100 in a continuous production line from feeding, surface damage marking area identification, fixed-length position correction, soft clamping to hard clamping, and mechanical elimination of unwinding stress through stress relief component 42 during the cutting process, so as to obtain a cut finished product with high straightness and high repeatability positioning accuracy.

[0036] To better describe the automated fixed-length sawing device for aluminum products of this application, it is first necessary to understand the product 100 that this device is designed for, aluminum flat tubes.

[0037] First, the raw material aluminum rods undergo various cleaning and preheating processes. Then, the raw material is extruded. After being extruded by a horizontal extruder, 100 aluminum flat tubes are produced. Subsequently, the tubes enter the downstream zinc spraying process. After the product is zinc sprayed, it is cooled and dried in sequence. Finally, it is coiled into a coil by a winding machine.

[0038] The aluminum flat tube 100, which is rolled into a coil, needs to be made into finished products of a fixed length. At this time, it is subjected to extrusion inspection and flaw detection. After a series of tests, the aluminum flat tube 100 is marked with inkjet markings for any problems, which will facilitate subsequent cleaning. Finally, the tested and rolled aluminum flat tube 100 is placed in a sawing device for fixed-length sawing, and then inspected and packaged into the final product.

[0039] Reference Figure 1 and Figure 2 As shown, an automated fixed-length sawing device for aluminum products includes: a processing platform 1 supporting an aluminum flat tube 100 and a sawing mechanism 2 disposed on the processing platform 1.

[0040] The processing platform 1 adopts a high-rigidity frame structure to reduce the impact of equipment vibration on cutting accuracy during sawing. The upper surface of the processing platform 1 is provided with a working area for supporting the aluminum flat tube 100. After the aluminum flat tube 100 enters the processing platform 1 under the action of the external feeding mechanism (conveyor belt), it is continuously conveyed along a predetermined path.

[0041] The sawing mechanism 2 is the sawing execution component of this device, used to saw the aluminum flat tube 100 to a fixed length.

[0042] Before the aluminum flat tube 100 is sawed, multiple processes are required to ensure the sawing accuracy. Specifically, the bending stress of the aluminum flat tube 100 is eliminated by the floating clamping assembly 4, then the aluminum flat tube 100 is measured and processed in real time, and finally the sawing mechanism 2 saws it.

[0043] First, the aluminum flat tube 100, which has been stored in a coil for a long time, is taken out and placed on a designated unwinding device (known structure). Then, the aluminum flat tube 100 is pulled through the floating clamping assembly 4 and placed on the processing platform 1. It is continuously conveyed by a known external feeding mechanism on the processing platform 1. During the conveying process, the floating clamping assembly 4 relieves the stress on the aluminum flat tube 100 and can also straighten the aluminum flat tube 100 to prevent it from bending after sawing.

[0044] Let's look again. Figure 1 and Figure 2 As shown, two floating clamping components 4 are installed on both sides of the sawing mechanism 2. The two floating clamping components 4 are distributed on both sides of the sawing mechanism 2. After the aluminum flat tube 100 is conveyed, it passes through the floating clamping components 4 and the automatic length fixing component 3 in sequence. The floating clamping components 4 are used to limit and clamp the aluminum flat tube 100, and at the same time eliminate the residual stress generated during the unwinding process of the aluminum flat tube 100.

[0045] Each floating clamping assembly 4 includes a fixed frame 43, a fixed clamping plate 40 fixedly connected to the fixed frame 43, and a floating clamping plate 41 elastically slidably connected to the fixed frame 43. The floating clamping plate 41 and the fixed clamping plate 40 are used to elastically clamp aluminum products.

[0046] Before and after sawing, the floating clamping plate 41 and the fixed clamping plate 40 together form a clamping channel. The aluminum flat tube 100 passes through this clamping channel. The stress relief component 42 eliminates the bending stress of the aluminum flat tube 100 passing through the clamping channel at a constant speed. The stress relief component 42 is located between the two floating clamping components 4.

[0047] Reference Figure 3 , Figure 4 and Figure 5As shown, a set of fixed frames 43 are installed on the processing platform 1. The fixed clamping plate 40 is fixed on the fixed frame 43, and the floating clamping plate 41 is slidably disposed on the fixed frame 43, with the floating clamping plate 41 located directly below the fixed clamping plate 40.

[0048] Two sets of traction columns 44 are symmetrically installed on the fixed clamping plate 40 along the length direction. The floating clamping plate 41 slides through the traction column 44. A floating compression spring 45 is also sleeved on the traction column 44 to drive the floating clamping plate 41 to always have an upward force.

[0049] It should be noted that the floating spring 45 provides an upward elastic force, so that the floating clamping plate 41 always forms a slight lifting and soft clamping on the aluminum flat tube 100.

[0050] During operation, in the initial entry stage of the aluminum flat tube 100, the floating clamping plate 41 and the fixed clamping plate 40 provide flexible support for the aluminum flat tube 100, reducing the initial feeding resistance and preventing the tube from being blocked or damaged due to premature force clamping. When entering the sawing stage, the floating clamping plate 41 gradually transforms into a rigid clamping of the tube through the action of the linkage component 5, ensuring the stability of the cutting process and preventing the tube from moving due to the release of residual stress.

[0051] Reference Figure 6 , Figure 7 and Figure 8 As shown, the stress relief component 42 includes a stress relief block 420 that abuts against the bottom of the aluminum flat tube 100 to form a reverse bow tendency and relieve stress. The stress relief block 420 is slidably installed in the movable sleeve 421 along the height direction. A guide post 422 aligned with the conveying direction of the aluminum flat tube 100 is installed in the middle of the fixed frame 43. The movable sleeve 421 is slidably installed on the guide post 422, and a stress relief spring 423 connected to the movable sleeve 421 is sleeved on the guide post 422. The stress relief spring 423 enables the movable sleeve 421 to have elastic return capability, ensuring that after the stress relief action is completed, the movable sleeve 421 can return to the initial position for the next cycle of use.

[0052] like Figure 7 As shown, a slot is provided on the stress relief block 420. Its function is to avoid the saw blade of the sawing machine 20 and prevent the saw blade of the sawing machine 20 from interfering with the stress relief block 420 during the cutting of the aluminum flat tube 100.

[0053] The stress relief component 42 is the core stress reduction method of the present invention. Its function is to form a reverse bow trend at the bottom of the wound aluminum flat tube 100 (opposite to the bending direction of the aluminum flat tube 100), thereby realizing the mechanical relief of the unwinding stress.

[0054] The stress relief block 420 forms a reverse arch (reverse arch) by contacting the bottom of the aluminum flat tube 100, so that the unwinding stress inside the tube is mechanically redistributed before cutting, reducing the coiling springback caused by stress release at the moment of cutting.

[0055] During operation, when the aluminum flat tube 100 is conveyed along the length of the processing platform 1, the aluminum flat tube 100 generates a frictional force on the stress relief block 420 that is abutting its bottom. This causes the stress relief block 420 to move along the guide post 422 in the direction of movement of the aluminum flat tube 100 and to compress the stress relief spring 423. When the compression force of the stress relief spring 423 gradually increases and exceeds the frictional force, the spring force needs to be released. At this time, the stress relief spring pushes the stress relief block 420 to move to the side opposite to the direction of movement of the aluminum flat tube 100. Then, the frictional force controls the movement of the stress relief block in the direction of movement of the aluminum flat tube 100. This process is repeated to achieve the reciprocating movement of the stress relief block 420 along the bottom of the aluminum flat tube 100. In this way, the stress relief block 420 can not only cause the aluminum flat tube 100 to produce a slight reverse arch (reverse bending to offset the winding stress) by compression, but also further eliminate the stress of the aluminum flat tube 100 through reciprocating movement.

[0056] Looking back Figure 7 As shown, vertically distributed precision control electric rods 424 are installed on the movable sleeve 421. The output end of the precision control electric rods 424 faces upward and is connected to the stress relief block 420, which controls the stress relief block 420 to handle the bending stress of aluminum flat tubes 100 of different sizes.

[0057] It should be noted that the stress corresponding to aluminum flat tubes 100 of different sizes is different. Therefore, when the device cuts aluminum flat tubes 100 of different sizes, the curvature of the reverse arch of the aluminum flat tube 100 can be changed by adjusting the height of the stress relief block 420, thereby effectively eliminating the bending stress of the aluminum flat tubes 100 of different sizes.

[0058] Not only for aluminum flat tubes 100 of different sizes, but also for aluminum flat tubes 100 of different thicknesses, widths and winding tightness, appropriate stress relief effect can be obtained.

[0059] For example, for a larger aluminum flat tube 100, the stress generated after winding is relatively large. At this time, the precision control electric rod 424 is activated to control the stress relief block 420 to move upward, so that it arches higher in the opposite direction, thereby generating a corresponding force to eliminate the bending stress; for a smaller aluminum flat tube 100, the opposite is true.

[0060] When the floating clamping assembly 4 relieves the stress on the aluminum flat tube 100, the automatic length measuring assembly 3 simultaneously monitors the length of the aluminum flat tube 100 in real time.

[0061] Reference Figure 9As shown, the automatic length setting component 3 is located on the side of the processing platform 1 away from the sawing mechanism 2. The automatic length setting component 3 includes an identification module 30 that identifies the damage location markers on the surface of the aluminum flat tube 100 and a sliding length setting seat 31 that automatically adjusts the sawing length according to the result of the identification module 30. Two sets of symmetrically distributed electric slide rails 32 are installed on the processing platform 1, and the sliding length setting seat 31 is slidably installed on the electric slide rails 32.

[0062] The identification module 30 is used to identify and analyze the damage location markers on the surface of the aluminum flat tube 100, and can determine the relative position and distribution of the markers in the length direction of the tube, and output control signals for length correction.

[0063] The sliding fixed-length seat 31 is installed on the electric slide rail 32, and can be adjusted laterally along the two sets of symmetrical slide rails, thereby changing the positioning point of the aluminum flat tube 100 before entering the sawing mechanism 2.

[0064] An electric push rod 33 is also installed on the sliding length-fixing base 31 of the automatic length-fixing assembly 3. The output end of the electric push rod 33 faces downward and is connected to a length-fixing baffle 34. The length-fixing baffle 34 passes through the sliding length-fixing base 31 along the height direction of the sliding length-fixing base 31 and abuts against the processing platform 1.

[0065] The electric slide rail 32, the electric push rod 33, and the identification module 30 are all electrically connected to the control module. The identification module 30 is used to identify and analyze the damage location markers on the surface of the aluminum flat tube 100 and upload the analysis results to the control module. The control module outputs signals to control the response of the electric slide rail 32 and the electric push rod 33.

[0066] The vertically downward output end of the electric push rod 33 is connected to the fixed length baffle 34. The fixed length baffle 34 passes through the fixed length seat along the height direction of the sliding fixed length seat 31 and abuts against the limiting surface of the processing platform 1, ensuring that when the sliding fixed length seat 31 moves to a new fixed length position, the fixed length baffle 34 can quickly and accurately form a new limiting end. The identification module 30, the sliding fixed length seat 31 and the slide rail system are electrically connected through the control module to form a closed-loop control, ensuring that the identification result can be converted into positioning adjustment in real time.

[0067] However, it should be noted that the aluminum flat tube 100 is in a coiled state before sawing. Its body is very long before sawing, and some areas may be damaged during the production process. In order to facilitate sawing, the damaged areas are marked during coiling. Therefore, the damaged areas can be effectively removed according to the marked areas during sawing. Thus, the identification module 30 will automatically identify the marked areas.

[0068] When there is no damaged area on the aluminum flat tube 100, the sliding fixed length seat 31 always stays in the designated position for fixed-length sawing. However, when the aluminum flat tube 100 is being transported, the identification module 30 identifies the marked area, and the sliding fixed length seat 31 is immediately activated, causing the sliding fixed length seat 31 to move and extend the length of this sawing until the identification module 30 can no longer identify the marked area. At this time, the sliding fixed length seat 31 stops moving, and the aluminum flat tube 100 will abut against the fixed length baffle 34 of the sliding fixed length seat 31, and then it can be sawed.

[0069] However, it should be noted that the products cut this time have damaged marked areas. These products are unusable and need to be processed centrally to avoid confusion with qualified aluminum flat tubes 100, thereby achieving identification of surface damage marks and correction of the length position.

[0070] Reference Figure 9 and Figure 10 As shown, the fixed-length baffle 34 includes a front baffle 340 and a rear base plate 341. The front baffle 340 and the rear base plate 341 are connected by a high-rigidity damping spring 342, and the output end of the electric control push rod 33 is connected to the rear base plate 341.

[0071] To improve repeatability and ensure impact buffering, a high-rigidity damping spring 342 is provided between the front baffle 340 and the rear base plate 341. The high-rigidity damping spring 342 provides the best combination of rigidity and buffering, so that the length setting process has both rigid limiting capability and necessary buffering energy absorption capability, reducing the risk of impact damage to the end of the tube.

[0072] In addition, and most importantly, when the aluminum flat tube 100 is rapidly conveyed, it will bounce back upon hitting the length baffle 34. If it is cut at this time, it will result in inaccurate length. Therefore, the length baffle 34 is designed as a double-layer buffer structure.

[0073] The aluminum flat tube 100 rushes over quickly and hits the front baffle 340. The damping spring 342 absorbs the kinetic energy to prevent the end of the aluminum flat tube 100 from deforming or rebounding. Then the damping spring 342 slowly pushes the front baffle 340 back to the standard length zero position, thus solving the contradiction between rapid feeding and accurate length setting.

[0074] Once the aluminum flat tube 100 is cut to the specified length, it can be sawn, as shown below: Looking back Figure 4 , Figure 5 and Figure 8 As shown, the sawing mechanism 2 includes a sawing machine 20 and a sawing swing arm 21. The sawing swing arm 21 is hinged to the sawing machine base. The sawing machine 20 is located at the end of the sawing swing arm 21 away from the sawing machine base. The sawing machine base is installed on the side wall of the processing platform 1, and the sawing swing arm 21 is controlled by a motor to swing towards the aluminum flat tube 100.

[0075] The saw base is the frame used to mount the saw 20, and it is a known existing structure.

[0076] The sawing mechanism 2 is the sawing execution component of this device, used to cut the aluminum flat tube 100 to a fixed length. The sawing machine 20 uses a saw blade suitable for sawing the aluminum flat tube 100, which can realize the fast and flat sawing of the aluminum flat tube 100. The drive component of the sawing machine 20 is electrically connected to the motor, and the motor drives the sawing machine 20 to rotate at high speed to realize the sawing action.

[0077] Let's look again. Figure 4 , Figure 5 and Figure 8 As shown, a linkage component 5 is also installed between the floating clamping plate 41 and the sawing mechanism 2 to realize the coordinated linkage between the sawing mechanism 2 and the floating clamping component 4, so that the sawing action and the clamping force adjustment are synchronized, thereby improving the sawing accuracy and stability.

[0078] The linkage component 5 includes a linkage wedge block 50 installed at the bottom of the floating clamping plate 41 and a linkage abutting rod 51 that abuts against the linkage wedge block 50. The linkage abutting rod 51 is slidably mounted on the fixed frame 43.

[0079] The sawing arm 21 is also provided with an active collar 520 and a passive collar 521. The passive collar 521 is fixedly connected to the sawing arm 21, and the active collar 521 is slidably connected to the sawing arm 21. A traction rod 53 is hinged on the active collar 521. The traction rod 53 extends obliquely downward and is connected to the linkage abutment rod 51.

[0080] A pressing spring 54 is provided between the active collar 520 and the passive collar 521.

[0081] During operation, the swing of the sawing arm 21 drives the fixedly connected passive collar 521 to move synchronously, while the slidingly connected active collar 520 generates relative displacement under the action of the pressing spring 54. The traction rod 53, through its connection with the linkage abutment rod 51, causes the linkage abutment rod 51 to generate relative displacement along the direction of the fixed frame 43. The abutment between the linkage wedge block 50 and the linkage abutment rod 51 keeps the floating clamping plate 41 at a low clamping force in the initial stage. As the sawing arm 21 continues to swing, the floating clamping plate 41 is gradually pressed, completing the switch from soft clamping to hard clamping. This linkage process realizes the automatic change of clamping state within a large range without the need for additional electronic control, improving the stability and consistency of the cutting process.

[0082] During operation: First, the aluminum flat tube 100 enters the conveying channel of the processing platform 1 through the external feeding mechanism and enters the area of ​​the floating clamping assembly 4. Under the action of the floating compression spring 45, the floating clamping plate 41 applies a soft and gentle pressure to the aluminum flat tube 100, providing a low-friction and low-resistance initial positioning environment to avoid impact on the end of the tube during initial contact.

[0083] Step 2: The damaged location markers on the surface of the aluminum flat tube 100 enter the observation range of the identification module 30. The identification module 30 locates and identifies the markers and outputs a length correction command. The identification result is transmitted to the sliding length holder 31 of the automatic length setting component 3 via the control system. The sliding length holder 31 moves horizontally under the drive of two sets of electric slide rails 32, changing the positioning point of the aluminum flat tube 100 before entering the sawing mechanism 2. At the same time, the electric control push rod 33 drives the length setting baffle 34 to descend along the height direction of the sliding length setting baffle 31 to the limiting surface of the processing platform 1, ensuring that the aluminum flat tube 100 is stably stopped at the new length setting position.

[0084] Step 3: After the aluminum flat tube 100 initially enters the fixed length position, the floating clamping plate 41 provides flexible constraint through the floating compression spring 45; then, the linkage component 5 begins to intervene, and the sawing swing arm 21 moves to drive the traction rod 53, so that the floating clamping plate 41 generates an increase in clamping force relative to the fixed clamping plate 40, thereby completing the conversion from soft clamping to hard clamping. At this time, the relative displacement of the aluminum flat tube 100 is significantly reduced, and the risk of shaking during the cutting process is minimized.

[0085] Step 4: The sawing arm 21 swings under the drive of the motor, so that the sawing machine 20 approaches the aluminum flat tube 100 along the set trajectory and completes the cut. To avoid interference, the stress relief block 420 is provided with a storage groove 425 on the top to ensure that the sawing machine 20 has sufficient space in the cutting area. The existence of the storage groove 425 also provides a certain amount of space for the cutting area, reducing the micro-displacement of the tube caused by stress release at the moment of cutting. At the same time, the storage groove 425 can also collect the impurities generated during sawing and prevent them from splashing.

[0086] Step 5: After cutting, the cut section of the aluminum flat tube 100 leaves the cutting position as a finished product section and enters the pre-processing of the next process or directly enters the subsequent processing line. The stress relief block 420 returns to the standby state under the action of the stress relief spring 423, the moving sleeve 421 returns to the initial position, and the length-fixing baffle 34 returns to its original position under the control of the electric push rod 33, entering the next working cycle. If a new defect area is detected or re-lengthening is required, the identification module 30 will output a correction signal again and enter a new cycle.

[0087] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automated fixed-length sawing device for aluminum products, comprising a processing platform (1) and a sawing mechanism (2) disposed on the processing platform (1), characterized in that, Also includes: The automatic length-fixing component (3) includes an identification module (30) and a sliding length-fixing seat (31). The identification module (30) is fixedly installed on the processing platform (1) and is used to identify the location marks of surface damage on aluminum products. The sliding length-fixing seat (31) is slidably installed on the electric slide rail (32) on the processing platform (1) and is used to move along the electric slide rail (32) according to the result of the identification module (30) to adjust the sawing length of the aluminum products. Two floating clamping assemblies (4) are distributed on both sides of the sawing mechanism (2). Each floating clamping assembly (4) includes a fixed frame (43) mounted on the processing platform (1), a fixed clamping plate (40) fixedly connected to the fixed frame (43), and a floating clamping plate (41) elastically slidably connected to the fixed frame (43). The floating clamping plate (41) and the fixed clamping plate (40) are used to elastically clamp aluminum products. The stress relief component (42), which is located on the processing platform (1) and between two floating clamping components (4), is used to extrude the arched surface of the aluminum product to relieve the unwinding stress of the aluminum product.

2. The automated fixed-length sawing device for aluminum products according to claim 1, characterized in that: A fixed length baffle (34) is slidably provided on the sliding fixed length base (31) along its height direction, and a strip groove is opened on the sliding fixed length base (31) for the fixed length baffle (34) to pass through. The fixed length baffle (34) passes vertically through the strip groove to limit the aluminum products on the processing platform (1). An electric control push rod (33) is also installed on the sliding fixed length base (31) through a bracket. The output end of the electric control push rod (33) faces the fixed length baffle (34) and is connected to it. The sliding fixed-length base (31) and the electric control push rod (33) are both electrically connected to the identification module (30). The identification module (30) controls the extension and retraction of the fixed-length baffle (34) and the movement of the sliding fixed-length base (31).

3. The automated fixed-length sawing device for aluminum products according to claim 1, characterized in that: Two sets of traction columns (44) are symmetrically installed on the fixed clamping plate (40) along the length direction. The floating clamping plate (41) slides through the traction column (44). A floating compression spring (45) is also sleeved on the traction column (44) to drive the floating clamping plate (41) to always have an upward force.

4. The automated fixed-length sawing device for aluminum products according to claim 1, characterized in that: The sawing mechanism (2) includes a sawing machine (20) and a sawing swing arm (21). The sawing swing arm (21) is hinged on the base of the sawing machine. The sawing machine (20) is located at one end of the sawing swing arm (21) away from the base of the sawing machine. The base of the sawing machine is installed on the side wall of the processing platform (1), and the sawing swing arm (21) is controlled by a motor to move towards the aluminum flat tube.

5. An automated fixed-length sawing device for aluminum products according to claim 4, characterized in that: A linkage assembly (5) is also installed between the floating clamping plate (41) and the sawing mechanism (2). The linkage assembly (5) includes a linkage wedge block (50) installed at the bottom of the floating clamping plate (41) and a linkage abutting rod (51) that abuts against the linkage wedge block (50). The linkage abutting rod (51) is slidably mounted on the fixed frame (43). The sawing arm (21) is also provided with an active collar (520) and a passive collar (521). The passive collar (521) is fixedly connected to the sawing arm (21), and the active collar (520) is slidably connected to the sawing arm (21). A traction rod (53) is hinged on the active collar (520). The traction rod (53) extends obliquely downward and is connected to the linkage abutment rod (51).

6. An automated fixed-length sawing device for aluminum products according to claim 5, characterized in that: A pressing spring (54) is provided between the active collar (520) and the passive collar (521).

7. The automated fixed-length sawing device for aluminum products according to claim 1, characterized in that: The stress relief assembly (42) includes a stress relief block (420) that abuts against the bottom of the aluminum flat tube to form a reverse bow tendency and relieves stress. The stress relief block (420) is slidably installed in the movable sleeve (421) along the height direction. A guide post (422) aligned with the conveying direction of the aluminum flat tube is installed in the middle of the fixed frame (43). The movable sleeve (421) is slidably mounted on the guide post (422), and a stress relief spring (423) connected to the movable sleeve (421) is sleeved on the guide post (422).

8. An automated fixed-length sawing device for aluminum products according to claim 7, characterized in that: The movable sleeve (421) is equipped with vertically distributed precision control electric rods (424). The output end of the precision control electric rods (424) faces upward and is connected to the stress relief block (420), which controls the stress relief block (420) to handle the bending stress of aluminum flat tubes of different sizes.

9. An automated fixed-length sawing device for aluminum products according to claim 7, characterized in that: The top of the stress relief block (420) is provided with a storage groove (425) for the sawing mechanism (2) to cut.

10. An automated fixed-length sawing device for aluminum products according to claim 2, characterized in that: The length-fixed baffle (34) includes a front baffle (340) and a rear base plate (341). The front baffle (340) and the rear base plate (341) are connected by a high-rigidity damping spring (342), and the output end of the electric control push rod (33) is connected to the rear base plate (341).

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